• Android 9 iMX8MM DDR4 Crash

    RAM is MT40A512M16LY-075:E 2GB.  I used MX8M_Mini_DDR4_RPA_v11 with ddr_tool_v3.10 for calibration and it passes without issue.  I also ran an over-night test and had no problems.  In u-boot I'm se...
    Michael Donahoe
    last modified by Michael Donahoe
  • imx8   uuu

    各位,如上图,是基于yocto_4.14.98_2.3.0编译得到的文件, 我这里有两块imx8的板,两块板的DDR,电源管理,EMMC都相同, 板1:旧的PCB板贴的是B版本的imx8芯片 板2:新做的PCB板贴的是C版本的imx8芯片 用uuu可以烧录“板1”,但不能烧录“板2”,错误如下,请问大概问题出在哪里?谢谢。
    zhang ming
    last modified by zhang ming
  • Build mfgtool firmware uboot

    Hi community, I'm working on the i.MX6 sabresd Quad platform with no PMIC.   While I try to burn image with mfgtool and I received log that show no pmic detected.   So I assumed that I need to build ...
    tsung li wang
    last modified by tsung li wang
  • PMIC_ON_REQ behavior during CPU POR

    HI,   We are designing a custom board using i.MX 8 DualXPlus CPU based on the  i.MX 8QXP MEK board. In order to simplify the Reset Scheme, we are doing the following changes: 1.  The SCU_WDOG_OU...
    Harsh Mistry
    last modified by Harsh Mistry
  • Can PF1550 handle CC charge lower than 100 mA in WARM stage?

    I have a product with a PF1550. I want to charge the battery using constant current of 25 mA max for high temperatures.   In order to do that, I set a CC 100 mA charge limitation for the JEITA1 NORMAL ...
    Anthony Loiseau
    last modified by Anthony Loiseau
  • System Controller API in IMX8QM-MEK

    Hi All,   I am working on Power Management - IMX8QM MEK board. I have to integrate system controller API to put system low power mode.   I integrated successfully and I got the following response,   M...
    vinothkumar s
    last modified by vinothkumar s
  • PCA9450 PMIC_NINT pin behavior

    I'm working on a design using the PCA9450. The system is up and running, and seems fine, but the PMIC_NINT pin is held low all the time except for about 1 second after power in it is driven to 0.4V for 10 milliseconds...
    Michael O'Brien
    last modified by Michael O'Brien
  • Controlling SNVS mode for i.MX8M

    Hi,   Current we're using an imx8m processor. I'd like to be able to make the processor sleep from a button, particularly the "SNVS/RTC mode" where almost everything is turned off. The PMIC used is the PF4210. &...
    Yannick B
    last modified by Yannick B
  • PCA9450 i2c address question

    I am developing custom board based on iMX8M mini + PCA9450A. static const struct udevice_id pca9450_ids[]={ {.compatible = "nxp,pca9450a", .data=0x35,}, {.compatible = "nxp,pca9450b", .data=0x25,}, {} } I can't ...
    chile heng
    last modified by chile heng
  • Programmer for PF4210

    Hi, may I know what tool I need to program the PF4210 please? Only one i found is the KITPFPGMEVME MMPF0100 - Programmer , can it be used for PF4210  also ? Many thanks,
    Enoch Arthur
    last modified by Enoch Arthur
  • PMIC read error | imx6q sabreAI

    Hi All, I am working on imx6q based sabre AI custom board, running android 7.1.Everything works fine on our first version but in our latest version of our custom board,it is showing PMIC read and write error and boot...
    RICHU C J
    last modified by RICHU C J
  • How to use the PCA9450B PMIC with iMX8 Nano & DDR4

    The PCA9450B BUCK6 regulator, used for NVCC_DRAM, defaults to 1.1V  However "standard" DDR4 needs 1.2V  (LPDDR4 uses 1.1V). Obviously BUCK6 in the PMIC needs to be programmed to 1.2V, very early in the Lin...
    frank van hooft
    last modified by frank van hooft
  • VDD_SNVS_0v9 rail on I.mx8 EVK

    Hi, I noticed in that on the I.mx8 EVK , VDD_SNVS_0v9 rail from the PMIC is disconnected and a separate regulator is used to generate this voltage. May I know why this is so. I am designing with the imx8 and pf42...
    Enoch Arthur
    last modified by Enoch Arthur
  • How mem_sleep is working

    Hi All,   I am working in Android automotive and have some doubt regarding deep sleep.   I needs to know how mem command is working for sleep entry and auto wakeup ?   echo mem > /sys/power/state&#...
    vinothkumar s
    last modified by vinothkumar s
  • imx28 shutdown on usb connect

    Hi when i insert USB with wifi dongle i see imx28 is getting shut down   following  are the log   Following is the log [ 102.640000] mxs-battery mxs-battery.0: vdd5v droop interrupt occurred [ 102.64000...
    shashikant h
    last modified by shashikant h
  • MCIMX7SABRE Eval board minimum current requirement

    Can anyone tell what is minimum current requirement of this MCIMX7SABRE evaluation board ? Getting started guide suggests, power source should be 5VDC/5A. Due to unavoidable situation, I cannot get 5VDC/5A power...
    Prabhakar Patil
    last modified by Prabhakar Patil
  • imx7d WDOG Reset PMIC Inconsistencies

    I am having some reset issues with the imx7d and PFuze PMIC (PF3000).  I have the external WDOG connected to the PMIC PWRON, and am trying to do controlled resets using reboot commands or from a wdog event.  ...
    David Wightman
    last modified by David Wightman
  • Access PMIC registers directly from APs in iMX8qm

    The System Controller firmware API does not have support to access the I2C bus between SCU and the PMIC in iMX8qm. We need to be able to send commands to the PMIC from the Linux user space running in the APs, possibly...
    mehdi.taabouri
    last modified by mehdi.taabouri
  • Where can I find the IMX8QuadMax core voltages and corresponding currents?

    Hi All,   We are going to design our own custom board using IMX8QM SoC. But we could not find any core voltages and corresponding currents regarding this processor. Could you please let me know how to find them?...
    Ashan Uyangoda
    last modified by Ashan Uyangoda
  • iMX8QM SNVS PMIC On Request

    Hi,   I would like to understand the behavior of the iMX8QM PMIC_ON_REQ line coming from the SNVS block.   Hardware Question : Is it possible to configure the default state of the PMIC_ON_REQ line ? By de...
    Stan Bertrand
    last modified by Stan Bertrand